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Fig. 2. Comparison of the mean firing rate (× SE) of nucleus of the solitary tract (NST) neurons in response to four taste stimuli, 25% ethanol (EtOH), and distilled water (dH2O) at 40°C (40) and 4°C (4) between EtOH-responsive and EtOH-non-responsive neurons. The last bars on the right of the figure indicate the baseline activities at room temperature. The solid bars indicate mean responses of EtOH-responsive neurons and open bars represent those of EtOH-non-responsive cells. For sucrose (S), 25% EtOH (E), and 40°C dH2O stimulus, net responses in EtOH-responsive neurons were significantly larger than those in EtOH-non-responsive cells (*p < 0.001, t-test). In comparison, citric acid (C)-, and QHCl (Q)-evoked firings were significantly larger in EtOH-non-responsive group (**p < 0.005, t-test). There were no differences across taste stimuli between EtOH-responsive and EtOH-non-responsive cells for NaCl (N) and 4°C dH2O stimuli.
Korean J Physiol Pharmacol 2021;25:603-611
© Korean J Physiol Pharmacol